Fill in the blanks.
There are some $10 notes and $100 notes.
The ratio of $10 notes and $100 notes is 2 : 1.
- Total number of notes = _____ u
- Difference in the number of $10 notes and $100 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $100 notes and $10 notes = _____ u
Value |
$10 |
$100 |
Number |
2 u |
1 u |
Total value |
10 x 2 u = 20 u |
100 x 1 u = 100 u |
(a)
Change ratio into units.
Number of $10 notes = 2 u
Number of $100 notes = 1 u
Total number of notes
= 2 u + 1 u
= 3 u
(b)
Difference in the number of notes
= 2 u - 1 u
= 1 u
(c)
Total value of $10 notes
= 2 u x 10
= 20 u
Total value of $100 notes
= 1 u x 100
= 100 u
Total value of notes
= 20 u + 100 u
= 120 u
(d)
Difference in the value of notes
= 100 u - 20 u
= 80 u
Answer(s): (a) 3; (b) 1; (c) 120; (d) 80